Now showing items 111-120 of 643
Variant properties of bovine liver 2-keto-4-hydroxyglutarate aldolase; its [beta]-decarboxylase activity, lack of substrate stereospecificity, and structural requirements for binding substrate analogs
(Elsevier, 1971-10-20)
1. 1. 2-Keto-4-hydroxyglutarate aldolase (2-oxo-4-hydroxyglutarate glyoxylatelyase; reaction: 2-oxo-4-hydroxyglutarate [left harpoon over right] pyruvate + glyoxylate) catalyzes the cleavage and the formation of both optical ...
Pregnenolone and pregnenolone sulfate metabolism by human fetal testes in vitro
(Elsevier, 1970)
Homogenates of testes from human fetuses of 12-16 weeks gestation were incubated in vitro with pregnenolone-4-14C and pregnenolone-7-3H-sulfate. Dehydroepiandrosterone sulfate and pregnenediol sulfate, each bearing the ...
Phosphatidate phosphatase : Activity and properties in fetal and adult rat lung
(Elsevier, 1978-09-28)
The purpose of this work is to compare the properties of phosphatidate phosphatase (-[alpha]-phosphatidate phosphohydrolase, EC 3.1.3.4) in fetal and adult rat lung and to establish the developmental profile of activity ...
Solution behavior, circular dichroism and 220 MHz PMR studies of the bovine myelin basic protein
(Elsevier, 1975-09-09)
Bovine myelin basic protein has been investigated with regard to its solution behavior, circular dichroism and 220 MHz PMR spectral properties.At pH 4.8 [gamma]/2 = 0.1 acetate buffer, light scattering yielded a Mr of 17 ...
Annealing effects of polymers and their underlying molecular mechanisms
(Elsevier, 1976-04)
This paper indicates that changes in chain mobility, heat capacity, WAXS crystallinity, SAXS long period, SAXS peak intensity, specific volume and morphology as a function of increasing temperature, occur in three fairly ...
Iron-ATP, a by-product of acid extraction of whole blood or red blood cells
(Elsevier, 1973-09-14)
Trichloroacetic acid extracts of red cell often produce an iron-ATP complex after ion exchange chromatography of the extract amounting to about 1/3 of the total ATP. In the present work the presence of 14-50% of iron-ATP ...
Molecular structure of F2POPF2: an electron diffraction study
(Elsevier, 1975-09)
The most important geometric parameters and associated uncertainties (2[sigma]) determined for F2POPF2 are the distances (rg) P-O = 1.631 +/- 0.010 A, P-F = 1.568 +/- 0.004 A, and angles POP = 135.2 +/- 1.8[deg], OPF = ...
Isoenzymes of carbonic anhydrase I from primate red blood cells
(Elsevier, 1971-04-27)
The electrophoretic patterns of the multiple forms of carbonic anhydrase I were examined from the red cells of two species of macaque monkeys and orangutan. In the rhesus macaque, Macaca mulatta, it was possible to generate ...
Thermophysical measurements on transition-metal tungstates I. Heat capacity of zinc tungstate from 5 to 550 K
(Elsevier, 1975-10)
Redetermination of the heat capacity of ZnWO4 after chemical removal of the ZnO phase from a previous sample has provided better values for chemical thermodynamic properties. At 298.15 K Cp, So, and -{Go(T) - Ho(0)}/T are ...